Schoolhouse.world is a free, nonprofit tutoring platform founded in 2020 by Sal Khan, the creator of Khan Academy. It connects students with volunteer peer tutors for live, small-group sessions covering math, science, SAT prep, and other subjects. The platform’s mission is to unlock every student’s potential through peer-powered learning and real human connection.
How the Platform Works
Schoolhouse.world operates on a peer-to-peer model. Volunteer tutors, many of them high school and college students themselves, lead live sessions over video for small groups of learners. Signing up and attending sessions is completely free for students. There are no paywalls, subscription tiers, or hidden costs.
Sessions cover a wide range of subjects: Pre-Algebra, Algebra 1, Algebra 2, Geometry, Pre-Calculus, Calculus, Statistics, Biology, Chemistry, Physics, Computer Science, Reading and Writing, History, and College Advice. The platform also runs SAT Bootcamps, which are structured four-week programs in Math and Reading and Writing timed to upcoming SAT test dates. Beyond academics, tutors can host “Enrichment” sessions on topics they care about, from cooking and study tips to public speaking.
Becoming a Tutor
Anyone 13 or older can apply to tutor, and no prior teaching or tutoring experience is required. The process has several steps. First, you get certified in one or more topics by demonstrating your knowledge on the platform, then fill out a short application. Once approved, you complete a set of training modules on your own schedule that cover how to lead a safe, effective session.
After training, you join a Slack community of other tutors and get paired with a peer mentor who helps you get oriented and gives you publishing privileges for your first session. From there, you pick a topic you’re certified in, set a date and time, and host your session. The community provides ongoing support through mentors and fellow tutors who share tips and answer questions as you continue volunteering.
Safety Measures
Because many users are minors, Schoolhouse.world layers multiple safety systems on top of each other. Tutors over 18 undergo background checks. All new users go through a visual age estimation process (powered by Yoti technology) to verify that people are who they say they are, and every new account is screened before it can access any sessions. The platform also uses device fingerprinting to flag suspicious accounts and prevent banned users from returning under new profiles.
Every tutoring session is recorded and regularly reviewed by the Schoolhouse team. Text-based communication on the platform, including direct messages between tutors and learners, is moderated, and sharing personal contact information is not allowed. Tutors can mute or remove disruptive participants during a session, and any learner removed for inappropriate behavior has their account frozen while the safety team investigates. Community members can report concerns at any time, and the safety team reviews every report and responds with coaching, increased monitoring, or account suspension as needed.
College Admissions Recognition
One of Schoolhouse.world’s most distinctive features is the portfolio it builds for tutors. As you tutor and earn certifications, the platform compiles a record of your volunteer hours and subject mastery. Some universities now factor this portfolio into admissions decisions.
Carnegie Mellon University announced a partnership in 2025 under which it considers a student’s Schoolhouse portfolio as part of its holistic undergraduate admissions review. The partnership goes further than admissions: students who earn Schoolhouse certifications can take placement exams in foundational STEM courses at CMU, including biology, chemistry, physics, calculus, and computer science. Those who pass can skip ahead into higher-level coursework, and CMU has signaled that certified expertise may eventually count for course credit.
This kind of recognition gives the tutoring hours a tangible payoff for volunteers, turning what might otherwise look like a line on a resume into verified, institution-recognized evidence of subject knowledge and community contribution.
Who It’s Best For
For learners, Schoolhouse.world fills a gap that private tutoring prices create. If you need help with high school math, want structured SAT prep, or are looking for college application guidance, you can find live sessions without paying anything. The small-group format means you get more interaction than a recorded lecture, and sessions are scheduled at various times to accommodate different time zones.
For tutors, the platform is a way to build teaching skills, contribute volunteer hours, earn subject certifications, and potentially strengthen a college application. The barrier to entry is low (no experience needed, minimum age of 13), but the certification and training process ensures a baseline level of quality before anyone leads a session. If you already know a subject well and want to help others learn it, the time investment to get started is modest.